(57) ABSTRACT A method and apparatus for physically secure communica tion over
machine-to-machine (M2M) networks is claimed, through the use of frequency-hop and …

US8599906B2 - Closed form calculation of temporal equalizer weights used in a repeater
transmitter leakage cancellation system - Google Patents US8599906B2 - Closed form …

(57) ABSTRACT A method for computing a factor matrix of an inversion of a matrix, wherein
the method comprises the steps of comput ing a factor matrix of an inversion of a Sub-matrix …

Methods and systems are provided to configure a frequency repeater. The frequency
repeater is configured with an iden tity of a service provider and receives a message that …

(57) ABSTRACT Related US Application Data A repeater environment is provided to deploy
a feedback (60) Provisional application No. 60/904,368, filed on Mar. cancellation loop that …

(57) ABSTRACT A system for embedding phase and amplitude into a real valued unipolar
signal suitable for intensity modulation (IM) by optical transmitters. The system includes a …

2023-10-13 Assigned to PHASE MATRIX, INC., NATIONAL INSTRUMENTS
CORPORATION reassignment PHASE MATRIX, INC. RELEASE OF SECURITY INTEREST …

6,785,513 B1 8/2004 Sivaprakasam JP 2003273831 A 9, 2003 6,889,033 B2 5/2005
Bongfeldt JP 2004.0482 O2 2, 2004 6,934,511 B1 8/2005 Lovinggood et al......... 455,111 JP …

BACKGROUND In optical communications, many modulation schemes have been used to
transport data. On-Off keying (OOK) is one modulation scheme that has been used, where …

In a radio communication system, a plurality of transmission antennas and a plurality of
reception antennas are arranged such that a channel matrix having channel responses …